CurryInfo: base-3.4.0 / Control.Search.SetFunctions.getSomeValue
definition: 
|
getSomeValue :: Values a -> IO (Maybe a) #ifdef __KICS2__ getSomeValue (Values []) = return Nothing getSomeValue (Values (x:_)) = return (Just x) |
|
demand:
|
argument 1 |
|
deterministic:
|
deterministic operation |
|
documentation:
|
Returns (indeterministically) some value in a multiset of values. If the value set is empty, `Nothing` is returned. |
|
failfree:
|
_ |
|
indeterministic:
|
referentially transparent operation |
|
infix:
|
no fixity defined |
|
iotype:
|
{({Values}) |-> _}
|
|
name:
|
getSomeValue |
|
precedence:
|
no precedence defined |
|
result-values:
|
_ |
|
signature:
|
Values a -> Prelude.IO (Prelude.Maybe a) |
|
solution-complete:
|
operation might suspend on free variables |
|
terminating:
|
possibly non-terminating |
|
totally-defined:
|
reducible on all ground data terms |